DEEP: Annual Summary Information for Ozone

Annual Summary Information for Ozone

*  Prior to 2008, the 8-hour ozone exceedance day tables reflect the 1997 NAAQS (84 ppb) and from 2008 forward, the tables reflect the 2008 NAAQS (75 ppb).  Tables from 2016 forward reflect the 2015 NAAQS (70 ppb). 
**  EPA's 2004 Implementation Rule revoked the 1-hour NAAQS, effective June 15, 2005, but states are not allowed to backslide from existing 1-hour ozone requirements.
 
  
2017
2016
2015
2014
2013
8-hour Ozone
Exceedance
Days*
5
31
22
8
18
1-hour Ozone
Exceedance
Days**
0
1
0
0
2
8-hour Ozone Daily Maximum Concentrations
July
August
Sept
1-hour Ozone Daily Maximum Concentrations
July
August
Sept
 
 
 
2012
2011
2010
2009
2008
8-hour Ozone
  Exceedance Days*
 27
14
24 
6
22
1-hour Ozone 
Exceedance Days**
2
2
0
0
2
8-hour Ozone Daily Maximum Concentrations
 May
 May 
 May 
1-hour Ozone Daily Maximum Concentrations 
 
 
  
2007
2006
2005
2004
2003
8-hour Ozone
Exceedance
Days*
17
13
20
6
14
1-hour Ozone
Exceedance
Days**
5
4
7
1
6
8-hour Ozone
 Daily
 Maximum
Concentrations
1-hour Ozone
 Daily
 Maximum
 Concentrations
 
 
   
2002
2001
2000
1999
1998
8-hour Ozone
Exceedance
 Days*
36 
26
15
33
25
1-hour Ozone
Exceedance
Days**
13
 9
3
11
5
8-hour Ozone
 Daily
 Maximum
Concentrations 
1-hour Ozone
 Daily
 Maximum
 Concentrations
April
May
June
July
August
Sept
 
 
 
 
 
Content last updated on June 15, 2017